http://www.bowsite.com/bowsite/features/articles/caribou/mad/
Read this article. It is not fish in a barrel. I was up there and it got right, but 13 hunters saw 4 bou for the first 2 and a half days!
Caribou follow caribou so if one goes down a trail get on that trail.
Use the rocks, topography, and veg to make your stalks.
Practice in the wind, it never really stopped!